public class Example29 {
    public static void main(String[] args) {
        int[]arr = {9,8,3,5,2};
        System.out.println("冒泡排序前:");
        printArray(arr);
        bubbleSort(arr);
        System.out.println("冒泡排序后:");
    }

    public static void printArray(int[] arr) {
        for(int i = 0;i<arr.length;i++){
            System.out.println(arr[i]+" ");
        }
        System.out.println("\n");
    }

    public static void bubbleSort(int[] arr) {
        for (int i=0;i<arr.length-1;i++){//-1减去一轮四轮循环后不在循环
            for(int j=0;j<arr.length-i-1;j++){
                if(arr[j]>arr[j+1]){
                    int temp = arr[j];
                    arr[j]=arr[j+1];
                    arr[j+1]=temp;//9
                }
            }
            System.out.println("第"+(i+1)+"轮排序后:");
            printArray(arr);
        }
    }
}
